moore



(No Model.

J. H. MOORE. HARROW.

No. 447,472. Patented Mar; 3, .1891.

w: huRms wcfzas .20., won-mum, ms c4 UNITED STATES PATENT OFFICE.

JOSIAH II. MOORE, OF BLOOMINGTON, ILLINOIS, ASSIGNOR TO HIMSELF AND THE IVALTON PLOIV COMPANY,-OF SAME PLACE.

HARROW.

SPECIFICATION forming part of Letters Eatent No. 447,472, dated March 3, 1 891.

Application filed December 2, 1890. Serial No. 373,377- (No model.)

To all whom it may concern:

Be it known that I, JOSIAH H. MOORE, residing at Bloomington, in the county of Mc- Lean and State of Illinois, and acitizen of the United States, have invented a new and useful Improvement in Harrows, of which the "following is a specification, reference being had to the accompanying drawings, in which Figure l is a top or plan view. Fig. 2 is a to horizontal section at line 2 2 of Fig. 3. Fig.

3 is a side elevation.

Only so much of a harrow is shown as is necessary to illustrate my invention. Heretofore considerable difiioulty has been experienced in providing simple and cheap devices for attaching harrow-teeth to the bars of the harrow.

The object of my invention is to provide a simple and cheap device by which the teeth can be readily and easily attached; and it consists of an improved clamp adapted to clamp a harrow-toot-h to the bar.

In the drawings, A represents an angleiron, which forms the bar to which the bar- 2 5 row-teeth are secured.

B represents one of the barrow-teeth.

0 represents the clamp.

The horizontal portion of each angle-iron A is provided with a hole through which a harroW-tooth B can pass. The vertical portion of the angle-iron is provided with an opening a and a bolt-hole b, as is best shown in Fig. 2.

The clamp 0 consists of a hook c, which is adapted to pass through the opening a in the angle-iron A, an angular portion d, adapted 3 5 to clasp the angular barrow-tooth B, and a plain portion 6, adapted to receive a bolt f. The bolt f passes through the plain portion 6 and the holeb in the angle-iron A. Ashoulder g is provided on the clamp O to prevent the head of the bolt f from turning.

The harrow-tooth B is secured in position by passing it through the hole in the horizontal portion of the angle-iron A, and by then passing the hook c of the clamp O through the hole a, and passing the bolt f through the plain portion 6 of the clamp and the holeb of the angle-iron.

By slightly loosening the not of the boltf, the harrow-tooth will be sufiici'ently loosened to permit it to be withdrawn and given a quarter-turn, as is necessary when the forward edge of the tooth has become worn, and the tooth can be again secured in position quickly by tightening the nut of the bolt f.

What I claim as new, and desire to secure by Letters Patent, is-

The combination, with a harrow-tooth and the angle-iron having holes a b, of a clamp C, having a hook 0, adapted to pass through the hole a, an angular portion cl, adapted to clamp the tooth, and a plain portion e, adapted to be bolted by a bolt f to the angle-iron, substantially as specified.

JOSIAH I-I. MOORE.

Witnesses:

WILLIAM M. GALBRAITH, THOMAS J. WILLEVER. 

